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Aluminium hardtail mountain bike Trek Procaliber 8 Eagle 70 red serpentine 12-speed

Aluminium hardtail mountain bike Trek Procaliber 8 Eagle 70 red: T-Type 1x12, Recon Gold 120 mm, 13.73 kg

€1,529.00 Incl. Tax

Color

Size

S
M
M / l
L
XL

Size charts

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Description
Product Details

Trek Procaliber 8 Red Serpentine: the T-Type drivetrain on an alloy frame

The Trek Procaliber 8 here adopts the SRAM Eagle 70 T-Type 1x12 drivetrain, with a 10-52 cassette and a derailleur mounted on the UDH standard, on an Alpha Platinum aluminium frame and a 120 mm RockShox Recon Gold RL fork. Trek claims 13.73 kg in a size M. The Red Serpentine shade is a dark, deep red, almost burgundy.

Technical specifications

Frame	Alpha Platinum aluminium, tapered head tube, internal cables, threaded BSA 73 bottom bracket, hidden rack and kickstand mounts, UDH hanger, Boost 148x12 mm
Fork	RockShox Recon Gold RL, DebonAir spring, Motion Control damper, lockout, Boost 110, 15 mm Maxle Stealth axle, 120 mm travel
Drivetrain	SRAM Eagle 70 T-Type 1x12: XS-1270 10-52 cassette, Eagle 70 DUB 32T crankset (170 mm), DUB BSA bottom bracket
Brakes	Shimano hydraulic, MT4100 levers, MT410 callipers, RT54 Centerlock 180 and 160 mm rotors
Wheels / tyres	Shimano TC500 hubs, Bontrager Kovee 23 mm Tubeless Ready rims / Maxxis Rekon Race EXO Tubeless Ready 29x2.40
Cockpit	Bontrager Comp 720 mm (S, M) or Rhythm Comp 750 mm handlebar, Bontrager 50 to 80 mm Blendr-compatible stem
Saddle / seatpost	Verse Short chromoly rails 145 mm / Bontrager Line Dropper 100 to 170 mm dropper post
Weight	13.73 kg in a size M (Trek figure, with tubeless sealant)

At a glance

✓ Alpha Platinum aluminium frame	✓ SRAM Eagle 70 T-Type 1x12
✓ 10-52 cassette, 32T chainring	✓ Recon Gold RL 120 mm fork
✓ Shimano hydraulic brakes	✓ 13.73 kg in a size M

Who is it for?

For the mountain biker who rides a lot, in all weathers, and wants a robust drivetrain that can take knocks against rocks and gear changes mid-climb. It will also appeal to riders who want to try XC racing on a durable bike, from S to XL.

The LVR workshop view

Alpha Platinum: a refined aluminium. In Trek's hierarchy of alloys, Platinum sits above the Alpha Silver of the Marlins and below the Alpha NEXT Platinum reserved for the latest-generation Fuels. The Procaliber 8 shares this frame with the Procaliber 6: cables routed through the tubes, a creak-free 73 mm BSA threaded bottom bracket, hidden kickstand and rack mounts, and a UDH universal derailleur hanger. Trek also says it now makes almost all of its aluminium frames from low-carbon metal.

	Alpha Platinum (Procaliber 6 / 8)	Alpha Silver (Marlin)	OCLV Mountain (Procaliber 9.x)
Level	Trek's high-end aluminium for hardtail mountain bikes	Entry-level MTB aluminium	Trek's mountain bike carbon
Construction	Internal cables, threaded BSA, UDH, Boost	Simple, robust design	OCLV process, impact-oriented layup, IsoBow
Reference bike (M)	Procaliber 8: 13.73 kg	Marlin 7: 14.15 kg	Procaliber 9.5: 12.13 kg
What it means	XC geometry, solid frame, controlled budget	Versatile for leisure rides and tracks, heavier	Lighter, more compliant rear end

Put simply: on this Procaliber 8, Trek replaces the Shimano groupset with a SRAM Eagle 70 T-Type, with a 10-52 cassette and a derailleur that mounts on the UDH standard. The claimed weight rises to 13.73 kg in M; here you choose a modern, robust drivetrain rather than a featherweight bike.

The T-Type derailleur mounts directly on the wheel axle thanks to the UDH standard: there is no longer a fragile hanger between the two, nor any limit screws to adjust. After a ride through the scree of the Espinouse, shifting stays crisp, even under heavy load.

The 10-52 cassette paired with the 32-tooth chainring gives a wider range than a 10-51: a little more speed on fast track descents and something in reserve for the steep ramps. The threaded BSA SRAM DUB bottom bracket makes maintenance easier, which we handle in our workshop.

Which Procaliber should you choose?

Model	Frame	Drivetrain	Fork	Weight (M)
Procaliber 6 (Deore M6200)	Alpha Platinum alloy	Shimano Deore 1x12	Judy Silver 120 mm	14.08 kg
Procaliber 8 (Eagle 70)	Alpha Platinum alloy	SRAM Eagle 70 T-Type 1x12	Recon Gold 120 mm	13.73 kg
Procaliber 9.5 (Fox Rhythm)	OCLV Mountain, IsoBow	Shimano Deore 1x12	Fox Rhythm 34, 120 mm	12.73 kg
Procaliber 9.6	OCLV Mountain, IsoBow	SRAM Eagle 70 T-Type 1x12	Fox Factory 34, 130 mm	12.38 kg

Our take: the Shimano XT/SLX version of the Procaliber 8 weighs 12.78 kg, 950 g less than this Eagle 70 build; the choice comes down to lightness versus drivetrain robustness. The carbon 9.6 keeps the Eagle 70 for 12.38 kg.

LVR sizing advice

If you are unsure, the smaller size favours agility on twisty trails, the larger one stability at high speed. The handlebar goes from 720 to 750 mm from ML upwards, the stem lengthens from 50 to 80 mm and the dropper post reaches 170 mm in XL.

Size	S	M	ML	L	XL
Rider height (cm)	155-165	165-177	173-180	177-188	188-195
Inseam (cm)	74-78	79-83	81-86	84-89	89-91
Handlebar / stem (mm)	720 / 50	720 / 60	750 / 60	750 / 70	750 / 80
Dropper post (travel, mm)	100	100	150	150	170

Source: Trek size guide. Bike fitting available in our Béziers shop.

Your questions

Is T-Type compatible with this frame?	Yes, the Procaliber 8 has the UDH hanger this derailleur requires.
Which dropper post?	A Bontrager Line Dropper of 100 mm in S and M, 150 mm in ML and L, 170 mm in XL.
Are the tyres tubeless?	Yes, the Maxxis Rekon Race tyres and Kovee rims are Tubeless Ready, fitted in our workshop.
Does this dark red show the dirt?	No, it hides dust and the red earth of the Salagou well between washes.

The LVR Cycles verdict

A Procaliber 8 built to last, with a T-Type drivetrain that shrugs off knocks and stays precise. Its dark serpentine red gives it an understated, classy look.

Pros
+ Very robust T-Type derailleur
+ Generous 10-52 range
+ Sizes from S to XL

Cons
- 13.73 kg in a size M
- No IsoBow on the alloy frame

Why buy from LVR Cycles? As a Trek dealer in Béziers, we fit and set up your T-Type drivetrain, set the wheels up tubeless and check over your Procaliber 8 after demanding rides.

Please note that the specifications may be changed without prior notice by the manufacturer, based on the availability of components and other factors.

Reference TRK-5350888

Data sheet